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- W2370077342 abstract "With polyurethane as wall material,the preparation technology and process of microcapsule coating were studied on the surface of poly-α-olefin viscoelastic polymer particles.Molecular dynamics simulation methods were used to discuss the relevant molecular designs,and stable performance polyurethane microcapsules were produced by the method of interfacial polymerization,with toluene 2,4-diisocyanate(TDI)and glycerol as active monomers.The influence on coating in monomer type,ratio,particle size and amount of wall material were researched,The surface morphology,oil solubility,heat and pressure resistance of poly-α-olefin microcapsules were tested.The influences of drag reduction effect by the indoor simulative loop evaluation system for oil drag reduction agent were evaluated.The results show that the length and number of branched chains had specific requirements in the design of coated wall material molecular.The reasonable process conditions of polyurethane-coated poly-α-olefin microcapsules were as follows:the system was aqueous solution,the molar ratio of isocyanate group(—NCO)and hydroxyl(—OH)was 1∶1,the mesh number of poly-α-olefin particle size was 60-80(250-180μm),the weight of wall material accounted for 0.5% of poly-α-olefin particles,the weight of surfactant accounted for 0.1% of poly-α-olefin particles,the temperature was 25℃ under atmospheric pressure.The producing poly-α-olefin microcapsule had good surface morphology,faster release speed,no effect on the original drag reduction,excellent heat and pressure resistance.Moreover,poly-α-olefin microcapsules which were stored in powder-like solid at room temperature can be made into oil drag reduction agent easily at the time of on-site using by being dispersed into the solvent directly and solved the technical problem of dispersion in industrial applications." @default.
- W2370077342 created "2016-06-24" @default.
- W2370077342 creator A5053848962 @default.
- W2370077342 date "2010-01-01" @default.
- W2370077342 modified "2023-09-28" @default.
- W2370077342 title "Research on Preparation of Coated Poly-α-olefin Microencapsulation Based on Polyurethane" @default.
- W2370077342 hasPublicationYear "2010" @default.
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